Ward switched to a lone striking role against the Tigers and put in his best performance in a Millers shirt as the hosts recorded an impressive 2-0 win.
It was a display that came out of the blue after a string of niggling injuries and some disappointing displays on the left.
But he silenced the critics against Hull, leading the line superbly, with his touch, pace and mobility causing a difficult afternoon for Harry Maguire and Curtis Davies.
And Redfearn, who was a suitor last January before Ward joined the Millers, is looking for a prolonged spell of form from the 25-year-old.
"I thought Danny was outstanding," said Redfearn. "I have said all along that I like him. I tried to sign him when I was at Leeds.
Ward's display was matched by his team-mates all over the pitch as the Millers made a mockery of their dismal showing at Huddersfield last week.
Redfearn went to town in criticising his players in the wake of that loss at the John Smith's Stadium, branding them "sub-standard" and not good enough for the Championship.
And he was please with the reaction he got against promotion-chasing Hull in a game where they were given little chance of winning.
"Hull had quite a bit of possession, but they are a good side; they are going to have the ball.